Disk for flexible couplings



R. J. STOKES.

Dz'sK Fon FLEXIBLE COUPLINGS.

APPLICAHON FILED SEPT.-23|192l Patented Mar. 14, 1922.

2 SHEETS-SHEET l,

R. J. STOKES.

DISK FOR FLEXIBLE C OUPLINGS. APPLICAHON FILED SEPT. 23. 1921.

lGQl l Patnted Mar. 14, 1922.

2 SHEETS-SHEET 2.

lvl' LSOZQ gg lH-yweyffw 0f M UNITED STATES PATENT OFFICE.

ROBERT J. STORES, OF TRENTON, NEW JERSEY, ASSIGNOR TO THERMOID RUBEERCOMPANY, OF HAMILTON TOWNSHIP, NEW JERSEY, A CORPORATION OF NEW JERSEY.

DISK FOR FLEXIBLE COUPLINGS.

Specication of Letters Patent. Patented Mar. 14;, 1922.

Application led September 23, 1921. Serial No. 502,737.

To all whom t may concern:

Be it known that I, ROBERT J. STORES, a citizen of the United States,residing in Trenton, Mercer County, New Jersey, have invented certainImprovements in Disks for Flexible Couplings, of which the following isa specification.

The object of this invention is to make a disk of a number of plies .offabric and vulcanizable material, the plies of the disk being graduallyreduced in width from the center to the surface and being so arrangedthat the disk'will have the greatest thickness in line with the boltholes.

The invention also relates to other details hereinafter described.

In the accompanying drawings:

Fig. 1 is a side View of the disk made in accordance with my invention;

Fig. 2 is an edge View;

Fig. 3 is a sectional view on the line 3 3, Fig. 1;

Fig. 4 is a side view showing the different plies of the disk, oneuponanother, the outer covering being removed;

Fig. 5 is a sectional view on the line 5--5, Fig- 4;

Fig. l6 is a view showing the different plies of the disk separated soas to illustrate the invention more clearly.

Fig. 7 is a sectional view of a flexiblev coupling illustrating myinvention;

Fig. 8 is an end view of the coupling;

Fig. 9 is a perspective'view of one of the washers;

Fig. 10 is a view showing a corrugated washer locatedvbetween two disks;

Fig. 11 is a view of my improved disks assembled with an ordinary disk;and

Fig. 12 is a View showing a ribbed washer.

'The flexible disk 3 consists of a series of layers of fabric combinedwith rubber, or other vulcanizable material. The disk is preferably madein twoparts, which are cemented together by vulcanizable material as inFig. 3. Each half consists of a base 4 of several layers of fabric madein the form of a ring and having an open center 5, as shown in Fig. 6.The different layers 6, 7 8,9 and 10 are mounted one upon another and onthe base 4 as shown in Figs. 5 and A6. The rings formed of the differentplies of mate-V rial are narrower at the outer side than at the base.

The two rings are built up, as shown in `tral opening.

Fig. 5, and are arranged back to back, as shown in Fig. 3, and acovering 11, of fabric, is placed on-each side of the disk, enclosingthe several layers. The disk is then vulcanized under pressure so as tomake a unitary structure, such as illustrated in Figs. 1 and 2. The diskis perforated at 12 for the securing bolts, the perforations beingthrough the thickest part of the disk so that the strain, to which thedisk is subjected, is taken by the thickest part of the disk.

This construction makes a very substantial disk, yet one which willyield under twisting strains, owing to the fact that it is comparativelynarrow at the points between the bolt holes, while on the line of thetransmitting strains the disk is exceedingly substantial.

When the disk is mounted between the two parts 15 and 16 of a coupling,as shown in Figs. 7 and 8, washers 13, Fig. 9 are preferably used, inwhich the flanges 14 are bent to conform to the shape of the disk, sothat when the nuts are drawn on the bolt 17, the disk is firmly clampedbetween the washers. The washers are preferably tapered as shown inFigs. 8 and 9 and they may be ribbed as shown in Fig. 12, in someinstances the ribs being imbedded in the material when the bolts aretightened.

In some instances, a corrugated washer may be located between the twosections of the disks as shown in Fig. 10, if found desirable. 'Y

I claim- 1. A flexible disk used in couplings, said disk consisting of aseries of layers of fabric and vulcanizable material, vulcanized underpressure, the fabric being in the form o'f rings differing in width froma common centre line of stress.

2. A flexible dislnnsed in couplings, hav' ing a central opening saiddisk being made of a series of plies of fabric and vulcanizablematerial, said disk having a series of bolt holes and being thicker onthe line of stress than at the periphery or at the cen- 3. `A flexibledisk`used in couplings, said disk consisting of a series of layers offabric and vulcanizable material vulcanized under pressure, said diskbeing made of a series of rings of fabric placed one upon another, therings at the centerbeing of a'greater width than at the sides.

4. A disk for iiexible couplings consisting of a series of layers offabric combined with vulcanizable material vulcanized underpressure,.the layers of fabric being in the form of rings, the rings, atthe center of the fabric, being Wider than those at the periphery; and aseries of bolt openings in the ring at the thickest point, the disktapering towards the center and the periphery from the bolt holes.

5. A disk for flexible couplings consistingl of a series of layers offabric combined with vulcanizable material vulcanized under pressure,the layers of fabric being in the form of rings, the rings, at thecenter of the fabric, being vvider than those at the periphery, a seriesof bolt openings in the ring at of the disk.

ROBERT J. STOKES.

